Training course on energy efficiency in SMEs - engine-sme.eu

Energy savings – 4. Use of control
systems
The potential energy saving gained from controllers can be
up to 60% of ventilation energy costs, depending on
• Building type and use
• Local climate
Direct digital control (DDC)
Occupancy sensors
Daylight controls
Fan motor controllers
Time clocks
allows precise, flexible management of electrical and mechanical parts
of a ventilation system. Digital controls can easily respond to building
changes and occupancy throughout the life of the building.
ensure that the air flow rate will be reduced or switched off if people
are not at their work place
provide occupants with the ability to adjust space lighting to their own
needs. Reduced lighting power translates into lower cooling loads,
smaller HVAC equipment and reduced energy consumption.
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ensure that the motor speed is correctly matched to the load
requirements of the ventilation system.
Are very simple and low cost controllers which often can be quickly
installed